摘要
以累脱石(REC)、壳聚糖(CTS)和丙烯酸(AA)为原料,在水溶液中通过接枝共聚反应合成壳聚糖接枝聚丙烯酸/累脱石复合高吸水性树脂(CTS-g-PAA/REC)。考察丙烯酸和壳聚糖的重量比、交联剂和累脱石用量对复合树脂吸水倍率的影响,测定不同REC含量复合高吸水性树脂的保水性能和不同交联度对反复吸水性能的影响。结果表明,REC加入量为10wt%时,复合高吸水性树脂的吸水和保水性能得到增强。
A novel superabsorbent composite of chitosan-g-poly（acrylic acid）/rectorite （CTS-g-PAA/REC） was synthesized through graft polymerization among rectorite, chitosan and acrylic acid in aqueous solution. The influence of the weight ratio of AA to CTS the contents of crosslinker and REC on water absorbency was investigated. The water retention of CTS-g-PAA/REC superabsorbent composites with different REC content and reawelling behavior of superabsorbent composites with different crosslinking degree were also examined, The results show that the introduced 10wt% of REC could enhance water absorbency and water retention ofCTS-g-PAA/REC superabsorbent composites,
出处
《非金属矿》
CAS
CSCD
北大核心
2008年第2期37-40,共4页
Non-Metallic Mines
基金
国家863计划“绿色环保多功能保水制剂”项目(2006AA100215)
国家863计划“低成本多功能仿生固沙新材料”项目(2006AA03Z0454)
中国科学院“西部行动”计划“西部荒漠化治理技术与应用示范”(KGCX2-YW-501)资助。
关键词
累脱石
复合高吸水性树脂
吸水
保水
recrorite
superabsorbent-composites
water-absorbency
water-retention
